US5428437A - Roll member wear indicator - Google Patents
Roll member wear indicator Download PDFInfo
- Publication number
- US5428437A US5428437A US08/232,966 US23296694A US5428437A US 5428437 A US5428437 A US 5428437A US 23296694 A US23296694 A US 23296694A US 5428437 A US5428437 A US 5428437A
- Authority
- US
- United States
- Prior art keywords
- wear
- sub
- providing
- visual indication
- predetermined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 230000000007 visual effect Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims 9
- 238000003379 elimination reaction Methods 0.000 claims 9
- 230000004087 circulation Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/131—Details of longitudinal profile shape
- B65H2404/1316—Details of longitudinal profile shape stepped or grooved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/133—Limited number of active elements on common axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/134—Axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/16—Irregularities, e.g. protuberances
- B65H2511/166—Irregularities, e.g. protuberances relative to diameter, eccentricity or circularity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2551/00—Means for control to be used by operator; User interfaces
- B65H2551/20—Display means; Information output means
Definitions
- the present invention relates to a rotational member that is susceptible to wear and, more particularly, to a roll member for use in an electrostatographic machine, wherein the roll member includes means for providing an indication of deterioration or wear of the peripheral surface thereof.
- a typical paper transport comprises a solid cylindrical bar having feed rolls secured thereto. Friction rollers having high surface friction characteristics relative to the friction between sheets to be separated are also employed in envelope feeding devices.
- U.S. Pat. No. 3,578,055 discloses a pneumatic tire having a recess formed in the tread rubber thereof by cutting or molding a recess shoulder portion formed in the rubber bounding the recess, and a tread wear marker located in the recess having at least a part thereof located radially inwardly of the shoulder portion and secured in position thereby.
- the marker comprises, at least in part, material which may be distinguished either visually or audibly upon rotation of the tire on a hard surface for indicating a degree of tread wear which has occurred in the rubber adjacent the marker.
- U.S. Pat. No. 3,814,160 discloses tires having a tread wear indicator wherein the tread has a surface portion of a first color and an interior subsurface tread wear indicator portion of a contrasting color.
- the tread has the same desirable wearing properties as carbon reinforced tire treads but at least one of the portions contains a reinforcing pigment.
- the indicating means described in the statutory invention registration includes a plurality of different plys connected together in layers with each layer covering essentially the entire surface area of the tread section, each having a tread pattern which extends over the entire surface area of the tread section with an innermost layer having a pattern shape which is different visually from the pattern shapes of all other plys.
- each ply further includes a color which is different from the color of all plys so that, as the tread section wears down during use of the tire, visually different plys will be exposed to indicate the state of the tread wear.
- the statutory invention registration discloses a tire having a double warning formed by different color and different tread patterns in the innermost layer thereof.
- a rotatable member including a body that is susceptible to wear having a thickness and peripheral surface extending between opposing end portions and means for providing a visual indication of wear in the body.
- a drive transport system for transporting a substrate along a predetermined path, comprising a rotatable shaft having a body that is susceptible to wear positioned axially thereon, the body having a peripheral surface and means for providing a visual indication of wear therein.
- an electrostatographic printing machine including recording medium drive transport system for transporting a substrate along a predetermined path, comprising a rotatable shaft having a body that is susceptible to wear axially positioned thereon, the body having a thickness and a peripheral surface and means for providing a visual indication of wear therein.
- FIG. 1 is a perspective view showing one embodiment of a drive roll as may be utilized in a typical electrostatographic printing machine
- FIG. 2 is an elevational view of a roll member having a wear indicator in accordance with the present invention
- FIG. 3 is a side view of the roll member shown in FIG. 2;
- FIG. 4 is an elevational view of an alternative embodiment of the drive roll of the present invention.
- FIG. 5 is a side view of the roll member shown in FIG. 4;
- FIG. 6 is a perspective view of yet another alternative embodiment of the roll member of the present invention.
- FIG. 7 is a schematic side view of an exemplary electrophotographic printing machine incorporating roll members having the features of the present invention therein.
- FIG. 7 there is shown an illustrative electrostatographic printing machine in schematic form.
- the machine incorporates an exemplary recirculating document handler (RDH) 20 of a generally known type, which may be found, for example, in the well known Xerox Corporation model "1075" or "5090" duplicators.
- RDH recirculating document handler
- Such electrostatographic printing systems are illustrated and described in detail in various patents, including U.S. Pat. No. 4,961,092.
- the principal operation of the document handler will also be disclosed in various other xerographic or other printing machines.
- a printing system of the type shown herein is preferably adapted to provide, in a known manner, duplex or simplex collated copy sets from either duplex or simplex original documents circulated by a document handler.
- the entire document handler unit 20 may be pivotally mounted to the copier 2 so as to be liftable up and away from a platen 23 by an operator for alternative manual document placement and copying.
- the exemplary printing system 2 is designed to receive input documents either manually positioned on the platen glass 3 or automatically positioned through the document handler unit, also known as a recirculating document handler (RDH) 20.
- RDH recirculating document handler
- the RDH 20 operates to automatically feed or transport individual registered and spaced document sheets onto and over the platen 23, which serves as the imaging station for the printing system 2.
- a platen transport system 24 is provided, which may be an incrementally servomotor driven non-slip or vacuum belt system controlled by the copier controller 100 in a manner taught by the relevant art to stop the document at a desired registration (copying) position.
- the illustrated document and copy sheets are drawn here with exaggerated spacing between the sheets being stacked. In actual operation these stacked sheets would be directly superposed upon one another.
- the RDH 20 has a conventional "racetrack" document loop path configuration, and preferably has generally known inverting and non-inverting return recirculation paths to the RDH loading and restacking tray 21. An exemplary set of duplex document sheets is shown stacked in this document tray 21.
- the RDH 20 is a conventional dual input document handler, having an alternative semiautomatic document handling (SADH) side loading slot 22. Documents may be fed to the same imaging station 23 and transported by the same platen transport belt 24 from either the SADH input 22 at one side of the RDH 20, or from the regular RDH input, namely the loading or stacking tray 21, on top of the RDH unit.
- SADH semiautomatic document handling
- the second document feeding input 22 is referred to herein as the SADH input 22, although it is not limited to semi-automatic or "stream feeding" document input feeding; that is, the SADH input 22 is also known to be usable for special "job interrupt” insert jobs.
- Normal RDH document feeding input comes from the bottom of the stack in tray 21 through an arcuate, inverting RDH input path 25 to the upstream end of the platen transport 24.
- Input path 25 preferably includes a known "stack bottom" corrugated feeder-separator belt and air knife system 26, document position sensors (not shown), and a first set of turn baffles and feed rollers for naturally inverting an input document prior to copying.
- Document inverting or non-inverting by the RDH 20 is further described, for example, in the United States patents U.S. Pat. Nos. 4,794,429 or 4,731,637, as well as numerous other references.
- the documents may be ejected by the platen transport system 24 into downstream or off-platen rollers and fed past a gate or a series of gates and sensors.
- the documents are either guided directly to a document output path and then to a catch tray, or, more commonly, the documents are instead deflected by a decision gate, past an additional sensor, and into an RDH return path 40, leading the documents back to tray 21 so that the document set can be continually recirculated.
- This RDH return path 40 includes reversible rollers to provide a choice of two different return paths to the RDH tray 21: a simplex return path 44 with one inversion; or a reversible duplex return path 46 without an inversion.
- the reversible rollers are rotated in an opposite direction to reverse feed the previous trail edge of the sheet back into the duplex return path 46 from an inverter chute 47.
- This duplex return path 46 provides for the desired inversion of duplex documents in one circulation as they are returned to the tray 21 for copying opposite sides of these documents in a subsequent circulation or circulations.
- this RDH inverter and inversion path 46, 47 is used only for documents loaded through RDH input tray 21 loaded documents and only for duplex documents.
- a duplex document In normal operation, a duplex document has only one inversion per circulation (occurring in the RDH input path 24). By contrast, in the simplex circulation path there are two inversions per circulation, one in each of the paths 24 and 44. Two inversions per circulation equals no inversion.
- simplex documents are returned to tray 21 in their original (face up) orientation via the simplex path 44.
- the entire stack of originals in the RDH tray 21 can be plurally recirculated and copied to produce a plurality of collated copy sets or the document set or stack may be RDH recirculated any number of times to produce any desired number of collated duplex print sets, that is, collated sets of duplex copy sheets.
- Mode selection and operation of the RDH is made in accordance with various instruction sets known as print jobs which can be programmed into the controller 100.
- blank or pre-printed copy sheets are conventionally fed from paper trays 51 or 52 (or the high capacity feeder tray shown thereunder) to receive a copier document image from photoreceptor 53 at transfer station 54.
- Such copy sheets are fused in a fuser 55, and output (if they are to be simplex copies), or, temporarily stacked in a duplex buffer tray 56 if they are to be duplexed, for subsequent return (inverted) via path 57 for receiving a second side image in the same manner as the first side.
- This duplex tray 56 has a finite predetermined sheet capacity, depending on the particular copier design.
- the completed duplex copy is preferably transported to an integral finishing and stacking module via output path 58.
- An optionally operated copy path sheet inverter 59 is also provided.
- Output path 58 is directly connected in a conventional manner to a generally known bin sorter 120, as is generally disclosed in U.S. Pat. No. 3,467,371.
- Bin sorter 120 includes a vertical bin array 122 which is conventionally gated to deflect a selected sheet into a selected bin as the sheet is transported past the bin entrance. An optional gated overflow top stacking or purge tray may also be provided for each bin set.
- the vertical bin array 122 may also be bypassed by actuation of a gate therein to direct sheets serially onward.
- finisher 124 which may include a stitcher for stapling print sets together and/or a thermal binder for adhesively binding the print sets into books.
- a stacker 125 is also provided for receiving and delivering final print sets to an operator or to an external third party device.
- All copier and document handler and sorter operations are preferably controlled by a generally conventional programmable controller 100.
- the controller 100 is additionally programmed with certain novel functions and graphic user interface features described herein for the operation of the electrostatographic printing system 2.
- the controller 100 preferably comprises a known programmable microprocessor system, as exemplified by extensive prior art, e.g., U.S. Pat. No. 4,475,156, and its references, for controlling the operation of all of the machine steps and processes described herein. This includes the actuation of the document and copy sheet feeders and inverters, gates, etc.
- the controller 100 also conventionally provides for storage and comparison of the counts of the copy and document sheets, the number of documents fed and recirculated in a document set, the desired number of copy sets, and other functions which may be input into the machine by the operator through a connecting panel of numerical and other control or through a variety of customized graphic user interface screens.
- Controller information and sheet path sensors are utilized to control and keep track of the positions of the respective document and copy sheets making up a print set and the operative components of the apparatus by their connection to the controller.
- the controller 100 may be conventionally connected to receive and act upon jam, timing, positional and other control signals from various sheet sensors in the document recirculation paths and the copy sheet paths.
- the controller 100 automatically actuates and regulates the positions of sheet path selection gates depending upon which mode of operation is selected and the status of copying in that mode.
- a transport assembly 10 having a pair of rollers 12 and 14 axially mounted along the length of a shaft 16.
- shaft 16 may be a hollow, thin wall tube having a pair of grooves 18 formed along its length, as shown, or the shaft may be a solid rod-type member.
- Rollers 12, 14 can serve, for example, as feed rollers in a xerographic copier, as previously described, for feeding paper sheets from a stack to an image transfer zone.
- a pair of transport assemblies 10 are positioned parallel to one another such that the rollers mounted on each shaft are juxtaposed in abutting relationship with one another, forming a nip therebetween.
- the transport assembly is formed from a drive roller, which is coupled to some drive means, and an idler roller which is merely rotatably mounted in such a manner as to form a nip with the drive shaft for generating a frictional force on a sheet substrate passing therebetween.
- the drive roller has a high friction surface which contacts the bottom side or non-image side of the sheet substrate or recording medium and provides the transporting force therefor.
- the idler rollers are free to move downwardly under gravity to place a normal force on the drive rollers, so that when a recording medium is moved between the nip formed by the drive roller and the idler rollers, the frictional surface of the drive roller will transport it until the trailing edge of the recording medium is moved from the nip.
- a biasing force is applied to the idler rollers to place a positive normal force on the recording medium, thus eliminating the possibility of a stall condition when the friction forces between the recording medium and the drive roller surface are low.
- the roll improvement disclosed herein may be incorporated into a conveyor transport mechanism wherein a conveyor belt is entrained about the circumference of a group of rollers for transporting the conveyor belt along a predetermined path of travel.
- the drive roller would likely be embodied in a singular elongated roll member, as shown in FIG. 6, as opposed to a pair of smaller roll members positioned on a shaft, as shown in FIG. 1.
- a drive roller as described hereinabove and, in particular, used in a configuration as described wherein friction contact is generated to provide transport is susceptible to wear which results in deterioration and erosion of the peripheral surface of the roller. While wear occurs in normal use, the problem of wear can be exacerbated by extremely high volumes of paper runs as is found in state of the art high volume copying machines, as well as by particularly abrasive recording materials or the like. Wear in the amount of as little as one millimeter or less can cause timing problems in delivering or transporting recording mediums from station to station as the diameter of the roll member is directly proportional to the velocity at which the recording medium will be transported.
- the present invention is directed toward the facilitation of identifying such wear prior to roll failure so as to prevent paper misfeeds and corresponding down time in the machine. It is therefore desirable to have some means for warning a user or a maintenance representative when a roll member is worn to an extent that it has exhausted its useful life or is deteriorating to that end.
- FIG. 2 A first embodiment of the present invention is shown in FIG. 2, wherein the invention comprises a roll member 12 including a body 13 having a peripheral surface 15.
- the roll member 12 has a recess 17 formed in the body 13 thereof extending radially inward from the peripheral surface 15 to a predetermined depth corresponding to the failure diameter of the roll member 12.
- the recess 17 provides an indicia of wear in the roll member 12 such that the disappearance of the recess provides a visual indication that the roll member is worn beyond its useful life.
- the recess of the present embodiment is shown as a groove extending around the circumference of the roll member, it will be understood that the recess can take many shapes, including, for example, a small circular or elliptical pocket shaped into the surface 15 of the roll member 12.
- FIGS. 4 and 5 An alternative embodiment of the present invention is shown in FIGS. 4 and 5.
- This exemplary alternative embodiment comprises a roll member 12 having a body 13 and a plurality of concentric rings 19 formed along opposite end portions of the roll member.
- Each concentric ring 19 has a predetermined diameter or thickness, forming a series of ridges or shoulder segments along the end portion of the roller member.
- This embodiment provides a graduated indication of depth of wear such that gradual wear of the roll member eliminates a given ring to provide not only an indication of wear beyond a failure point but also an indication of the amount of wear existing in a given roll member.
- This embodiment provides the added benefit of indicating a given amount of wear through quick visual inspection of the roll member so that a user or a technical representative might be alerted that the roll member, while not at its failure mode, is approaching the failure mode such that an educated prediction of the failure event can be approximated.
- this multi-layer embodiment allows for flexibility in designing one roll member that may be used in various machines. That is, while the same roll may be used in various machines or at various locations within a machine, failure may occur with various degrees of wear. This embodiment allows for use of the same roll in various environments while providing an indication of wear that is useful.
- the embodiment described hereinabove also provides the ability to observe an "out-of-round" condition in the roll member body, which may be beneficial in determining causes of failure.
- a roll member 12 is provided with a sub-layer 31 of visually distinguishable material, located at a predetermined depth below the peripheral surface 15.
- This sub-layer 31 may be of a different color than the material making up the body 13 or may have an embedded pattern which provides an indicia of wear in a manner such that gradual deterioration of the peripheral surface 15 of the roll member 12 eventually leads to the exposure of the sub-layer.
- the sub-layer 31 provides an easily identifiable indicia of wear for the roll member.
- This embodiment provides advantageous benefits in that the indicia of wear may be exposed at any given point along the length of the roll member 12 such that uneven wear of a roll member will be identified.
- roller member having an indicia of wear. While the roller member of the present invention has been described in conjunction with various embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, this invention is intended to embrace all such alternatives, modifications and variations as may fall within the spirit and broad scope of the appended claims.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
Claims (26)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/232,966 US5428437A (en) | 1994-04-25 | 1994-04-25 | Roll member wear indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/232,966 US5428437A (en) | 1994-04-25 | 1994-04-25 | Roll member wear indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
US5428437A true US5428437A (en) | 1995-06-27 |
Family
ID=22875303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/232,966 Expired - Lifetime US5428437A (en) | 1994-04-25 | 1994-04-25 | Roll member wear indicator |
Country Status (1)
Country | Link |
---|---|
US (1) | US5428437A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040149295A1 (en) * | 2002-01-07 | 2004-08-05 | Stephan Wolff | Wear indicator for a roller |
US20040245705A1 (en) * | 2003-06-09 | 2004-12-09 | Kabushiki Kaisha Toshiba | Apparatus and method for controlling pressing force of separation roller |
US6904243B2 (en) * | 2002-06-07 | 2005-06-07 | Hewlett-Packard Development Company, L.P. | Image forming system and method and photoconductor having wear indicator |
US20050195259A1 (en) * | 2004-03-05 | 2005-09-08 | Brother Kogyo Kabushiki Kaisha | Discharge roller, conveyance apparatus, and recording apparatus |
GB2414469A (en) * | 2004-05-28 | 2005-11-30 | Hewlett Packard Development Co | Wear Indication In Sheet Feeding Apparatus |
US20060245777A1 (en) * | 2005-03-29 | 2006-11-02 | Seiko Epson Corporation | Roller structure |
US20090045036A1 (en) * | 2004-07-26 | 2009-02-19 | Thomas Rumpf | Driven transporting roller with circumferential markings |
WO2010122207A1 (en) * | 2009-04-20 | 2010-10-28 | Metso Paper, Inc. | An indicator for determining usable thickness of a cover of a paper machine roll |
US20120157275A1 (en) * | 2010-12-17 | 2012-06-21 | Xerox Corporation | Method and system for detecting wear in imaging devices |
US20120248691A1 (en) * | 2011-04-01 | 2012-10-04 | Hung-Ta Hsueh | Lead edge feeder wheel for carton making machine |
US20130084163A1 (en) * | 2011-10-04 | 2013-04-04 | David J. Wiebe | Wear indication system for compressor diaphragms of gas turbine engines |
US9102476B2 (en) | 2012-10-25 | 2015-08-11 | Solus Industrial Innovations, Llc | Conveyor system wear indication devices and methods |
JP2020012278A (en) * | 2018-07-17 | 2020-01-23 | ナブテスコ株式会社 | Door device and door device contact member |
US10689204B1 (en) | 2019-02-11 | 2020-06-23 | Diamondback Innovations, Llc | Rollers with wear-indicating features and belt conveyor incorporating same |
US20200198758A1 (en) * | 2018-12-20 | 2020-06-25 | Airbus Operations Limited | Aircraft glazing unit |
US20210245977A1 (en) * | 2018-08-22 | 2021-08-12 | Hewlett-Packard Development Company, L.P. | Print devices |
US11385575B2 (en) * | 2018-11-02 | 2022-07-12 | Hewlett-Packard Development Company, L.P. | Fuser rollers |
US11419462B2 (en) * | 2019-03-07 | 2022-08-23 | Gojo Industries, Inc. | Wipes dispensing nozzles having wear indicators and wipes dispensers having the same |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706509A (en) * | 1950-04-01 | 1955-04-19 | Gates Rubber Co | Means for indicating tire tread wear |
US3578055A (en) * | 1967-10-18 | 1971-05-11 | Dunlop Co Ltd | Tread wear indicator |
US3808658A (en) * | 1970-11-27 | 1974-05-07 | Xerox Corp | Snap roller |
US3814160A (en) * | 1972-09-18 | 1974-06-04 | Ppg Industries Inc | Tread wear indicator |
US4149797A (en) * | 1977-06-03 | 1979-04-17 | Xerox Corporation | Sleeved organic rubber pressure rolls |
USRE30518E (en) * | 1968-06-29 | 1981-02-17 | Dunlop Holdings Limited | Pneumatic tire wear indicating tread pattern |
US4287649A (en) * | 1978-08-04 | 1981-09-08 | Truly Magic Products, Inc. | Roller construction for paper feeding |
US5142760A (en) * | 1989-06-01 | 1992-09-01 | Xerox Corporation | Articulating idler roll |
US5342037A (en) * | 1993-12-17 | 1994-08-30 | Xerox Corporation | Feed roll wear compensation scheme |
-
1994
- 1994-04-25 US US08/232,966 patent/US5428437A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706509A (en) * | 1950-04-01 | 1955-04-19 | Gates Rubber Co | Means for indicating tire tread wear |
US3578055A (en) * | 1967-10-18 | 1971-05-11 | Dunlop Co Ltd | Tread wear indicator |
USRE30518E (en) * | 1968-06-29 | 1981-02-17 | Dunlop Holdings Limited | Pneumatic tire wear indicating tread pattern |
US3808658A (en) * | 1970-11-27 | 1974-05-07 | Xerox Corp | Snap roller |
US3814160A (en) * | 1972-09-18 | 1974-06-04 | Ppg Industries Inc | Tread wear indicator |
US4149797A (en) * | 1977-06-03 | 1979-04-17 | Xerox Corporation | Sleeved organic rubber pressure rolls |
US4287649A (en) * | 1978-08-04 | 1981-09-08 | Truly Magic Products, Inc. | Roller construction for paper feeding |
US5142760A (en) * | 1989-06-01 | 1992-09-01 | Xerox Corporation | Articulating idler roll |
US5342037A (en) * | 1993-12-17 | 1994-08-30 | Xerox Corporation | Feed roll wear compensation scheme |
Non-Patent Citations (2)
Title |
---|
Statutory Invention Registration No. H1283 Inventor: Porto et al. Published Feb. 1, 1994. * |
Statutory Invention Registration No. H1283 Inventor: Porto et al.-Published Feb. 1, 1994. |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040149295A1 (en) * | 2002-01-07 | 2004-08-05 | Stephan Wolff | Wear indicator for a roller |
US7175580B2 (en) * | 2002-01-07 | 2007-02-13 | Hauni Maschinenbau Ag | Wear indicator for a roller |
US6904243B2 (en) * | 2002-06-07 | 2005-06-07 | Hewlett-Packard Development Company, L.P. | Image forming system and method and photoconductor having wear indicator |
US20040245705A1 (en) * | 2003-06-09 | 2004-12-09 | Kabushiki Kaisha Toshiba | Apparatus and method for controlling pressing force of separation roller |
US20050195259A1 (en) * | 2004-03-05 | 2005-09-08 | Brother Kogyo Kabushiki Kaisha | Discharge roller, conveyance apparatus, and recording apparatus |
GB2414469A (en) * | 2004-05-28 | 2005-11-30 | Hewlett Packard Development Co | Wear Indication In Sheet Feeding Apparatus |
US20050275152A1 (en) * | 2004-05-28 | 2005-12-15 | Baum Robert A | Multi-layer sheet feeder |
GB2414469B (en) * | 2004-05-28 | 2007-09-05 | Hewlett Packard Development Co | Multi-layer sheet feeder |
US7300047B2 (en) | 2004-05-28 | 2007-11-27 | Hewlett-Packard Development Company, L.P. | Multi-layer sheet feeder |
US20090045036A1 (en) * | 2004-07-26 | 2009-02-19 | Thomas Rumpf | Driven transporting roller with circumferential markings |
US20060245777A1 (en) * | 2005-03-29 | 2006-11-02 | Seiko Epson Corporation | Roller structure |
US7523934B2 (en) * | 2005-03-29 | 2009-04-28 | Seiko Epson Corporation | Roller structure |
WO2010122207A1 (en) * | 2009-04-20 | 2010-10-28 | Metso Paper, Inc. | An indicator for determining usable thickness of a cover of a paper machine roll |
US20120157275A1 (en) * | 2010-12-17 | 2012-06-21 | Xerox Corporation | Method and system for detecting wear in imaging devices |
US20120248691A1 (en) * | 2011-04-01 | 2012-10-04 | Hung-Ta Hsueh | Lead edge feeder wheel for carton making machine |
US20130084163A1 (en) * | 2011-10-04 | 2013-04-04 | David J. Wiebe | Wear indication system for compressor diaphragms of gas turbine engines |
US8622016B2 (en) * | 2011-10-04 | 2014-01-07 | Siemens Energy, Inc. | Wear indication system for compressor diaphragms of gas turbine engines |
US9102476B2 (en) | 2012-10-25 | 2015-08-11 | Solus Industrial Innovations, Llc | Conveyor system wear indication devices and methods |
US9409721B2 (en) | 2012-10-25 | 2016-08-09 | Solus Industrial Innovations, Llc | Conveyor system wear indication devices and methods |
JP2020012278A (en) * | 2018-07-17 | 2020-01-23 | ナブテスコ株式会社 | Door device and door device contact member |
JP7231995B2 (en) | 2018-07-17 | 2023-03-02 | ナブテスコ株式会社 | Life prediction method for door device and contact member |
US20210245977A1 (en) * | 2018-08-22 | 2021-08-12 | Hewlett-Packard Development Company, L.P. | Print devices |
US11385575B2 (en) * | 2018-11-02 | 2022-07-12 | Hewlett-Packard Development Company, L.P. | Fuser rollers |
US20200198758A1 (en) * | 2018-12-20 | 2020-06-25 | Airbus Operations Limited | Aircraft glazing unit |
US11873117B2 (en) * | 2018-12-20 | 2024-01-16 | Airbus Operations Limited | Aircraft glazing unit |
US10689204B1 (en) | 2019-02-11 | 2020-06-23 | Diamondback Innovations, Llc | Rollers with wear-indicating features and belt conveyor incorporating same |
US11419462B2 (en) * | 2019-03-07 | 2022-08-23 | Gojo Industries, Inc. | Wipes dispensing nozzles having wear indicators and wipes dispensers having the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5428437A (en) | Roll member wear indicator | |
EP0293968B1 (en) | Reprographic machine | |
CA2128679C (en) | Trimmer blower and high capacity waste bin | |
EP0583928B1 (en) | Paper path velocity signature analysis apparatus and method | |
EP0616895B1 (en) | Sheet variable corrugating and feeding nip | |
US4708462A (en) | Auto duplex reproduction machine | |
US5014977A (en) | Sheet stopping and lateral registration system | |
CA1205501A (en) | Document deskewing system | |
EP0899619B1 (en) | Unscheduled set ejection method in a finisher | |
EP0284305B1 (en) | Document handling system | |
US11643289B2 (en) | Sheet feeding apparatus and image forming apparatus | |
US7556260B2 (en) | Image forming apparatus | |
EP0464735B1 (en) | Dual mode document registration system | |
US6647241B2 (en) | Sheet wrinkling suppression image forming apparatus and method | |
US5915689A (en) | Quick change swiper blades | |
US4920383A (en) | Paper handling for repetitive movement of variable length media through an image transfer station | |
JP4097564B2 (en) | Sheet ejector | |
JP4995528B2 (en) | Image forming apparatus | |
JP2509230B2 (en) | Sheet handling device | |
JP7363330B2 (en) | Recording material transport device and image forming device | |
JP7508304B2 (en) | Sheet conveying device and image forming apparatus | |
EP0560335A2 (en) | Convey belt and conveying apparatus with it | |
WO2023189915A1 (en) | Sheet conveyance device and image forming device provided therewith | |
JP2532293Y2 (en) | OHP sheet interleaf sheet feeder | |
JPH03288743A (en) | Sheet transporting device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: XEROX CORPORATION, CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CARTER, DANIEL L.;BALDWIN, STEVEN W.;SCARLATA, RICHARD F.;REEL/FRAME:006976/0451 Effective date: 19940420 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: BANK ONE, NA, AS ADMINISTRATIVE AGENT, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:XEROX CORPORATION;REEL/FRAME:013153/0001 Effective date: 20020621 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: JPMORGAN CHASE BANK, AS COLLATERAL AGENT, TEXAS Free format text: SECURITY AGREEMENT;ASSIGNOR:XEROX CORPORATION;REEL/FRAME:015134/0476 Effective date: 20030625 Owner name: JPMORGAN CHASE BANK, AS COLLATERAL AGENT,TEXAS Free format text: SECURITY AGREEMENT;ASSIGNOR:XEROX CORPORATION;REEL/FRAME:015134/0476 Effective date: 20030625 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: XEROX CORPORATION, NEW YORK Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK ONE, NA;REEL/FRAME:033975/0830 Effective date: 20030625 |
|
AS | Assignment |
Owner name: XEROX CORPORATION, CONNECTICUT Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A. AS SUCCESSOR-IN-INTEREST ADMINISTRATIVE AGENT AND COLLATERAL AGENT TO JPMORGAN CHASE BANK;REEL/FRAME:066728/0193 Effective date: 20220822 |